How to combine vertex groups and texture as density map in geometry nodes?

Question

I would like to add, point density to be affected by weight painted vertex group as well as a texture (for instance cloud texture).

I can use vertex group as density influencer on point distribute node by writing the name of the vertex group on density parameter (ground.camPosition) as above: I can use texture with attribute texture sample node:

However, I cannot combine them how can I combine vertex group and texture for combined density maps on geometry nodes?

Thanks in advance

Answer 1

With Blender 3.1 (GN-Fields) ...

• Create this node tree

• Weight Paint something ... it will automatically generates Vertex Group by default named Group

• With Group Input node selected go to Modifier Properties and next to the Value click on "spreadsheet" icon and choose your vertex group (here named Group) or type it into the field.

So ... in this case is texture mixed with vertex weight by Math node

Note: If you have difficulties to set vertex group attribute in modifier ... go to Geometry nodes editor > Side panel N ... there should by set type Float (it happens when plugged Math value) ... if there is something else switch to Float (Vector worked too).